The problem is not that no one can distinguish it. It's that the intended audience (beginners in Python in your example) can't distinguish it and are not able to easily find and learn from trusted sources.
I bet ChatGPT can come up with above-average content to teach Python.
We should teach beginners how to prompt engineer in the context of tech learning. I bet it's going to yield better results than gate-keeping book publishing.
Now that it’s possible to produce mediocrity at scale, that process breaks down. How is a beginner supposed to know whether the tutorial they’re reading is a legitimate tutorial that uses best practices, or an AI-generated tutorial that mashes together various bits of advice from whatever’s on the internet?
There are almost always trade-offs and choosing one option usually involves non-tech aspects as well.
Online tutorials freely available very rarely follow, let's say, "good practices".
They usually omit the most instructive parts, either because they're wrapped in a contrived example or simplify for accessibility purposes.
I don't think AI-generated tutorials will be particularly worse at this to be honest...
I've seen many developers using technologies without reading the official documentation. It's insane. They make mistakes and always blame the tech. It's ludicrous...